C# Music Randomizer Causing Lag

Questions & Answers
1

I created a music Randomizer script and for some reason it’s causing a noticeable amount of lag. It’s pretty small so I’m not sure why it’s causing lag. Though I’m pretty sure the script is causing the lag. The lag occurs immediately after I attach the script to a gameobject and when I remove it from the gameobject the lag is gone. Any ideas as to why this is occurring?

using UnityEngine;

public class Music : MonoBehaviour {
	public AudioSource audioSource;
	public AudioClip[] sounds;
	public AudioClip sound;
	public float wait;
   
	void Start(){
		audioSource = GetComponent<AudioSource>();
		sounds = Resources.LoadAll<AudioClip>("Music");
	}
 
	void Update(){
 
		if(wait <= 0f){
			sound = sounds[Random.Range(0, 10)];
			audioSource.clip = sound;
			audioSource.Play();
			wait=sound.length;
		}
		else if(wait > 0f){
			wait -= Time.deltaTime;
		}
	}
}
2

First I would change the way you load in the sounds at update, as it is loading a new sound every frame

 private bool checkLoad = true;
 void Start(){
     audioSource = GetComponent<AudioSource>();
     sounds = Resources.LoadAll<AudioClip>("Music");
     LoadSong();
 }

  void Update(){
  
         if(wait <= 0f){
             audioSource.Play();
             if(checkLoad == true)
                   LoadSong();
         }
         else if(wait > 0f){
             wait -= Time.deltaTime;
             checkLoad = true;
         }
     }

    void LoadSong()
    {
          sound = sounds[Random.Range(0, 10)];
          audioSource.clip = sound;
          wait=sound.length;
          checkLoad = false;
    }